lO CONTENTS. 



PAGE 



VERMES, OR WORMS 229 



Brachiopods 231 



POLYZOA 232 



Parasitic Worms 233 



ECHINODERMS, OR STARFISHES 233 



holothurians 233 



echinoidea 234 



Sea Stars 238 



Ophiurans 240 



Crinoids 241 



CCELENTERATES, OR LASSO-THROWERS 242 



acalephs 242 



Polyps 252 



SPONGES 265 



PROTOZOANS 266 



CONCLUSION 269 



IN DEX 273 



